室内环境下2.6GHz同时同频全双工自干扰信道测量与建模  

Measurement and Modeling of Co-Time Co-Frequency Full-Duplex Self-Interference Channel of the Indoor Environment at 2.6GHz

作　　者：吴翔宇[1] 沈莹[1,2] 唐友喜[1] 

机构地区：[1]电子科技大学通信抗干扰国家级重点实验室,四川成都611731 [2]航天恒星科技有限公司(503所),北京100086

出　　处：《电子学报》2015年第1期1-6,共6页Acta Electronica Sinica

基　　金：国家自然科学基金(No.61001087;No.61101034;No.U1035002/L05;No.61271164);国家重大专项资助课题(No.2014ZX03003001-002;No.2012ZX03003010-003;No.2011ZX03001-006-01);中央高校基金(No.ZYGX2012J142);中国航天科技集团公司卫星应用研究院开放基金

摘　　要：目前,对同时同频全双工的自干扰信道特性尚未进行研究.针对这一现状,采用基于网络分析仪的信道测量平台,对室内环境下2.6GHz同时同频全双工自干扰信道特性进行测量与分析.基于实测数据统计分析,得出了传输损耗模型与均方根时延扩展统计模型.结果表明:传输损耗服从断点损耗模型,天线间距在大于1m的传输损耗指数为1.86,天线间距小于1m的传输损耗指数为1.52;均方根时延扩展的统计特性随着天线间距在不同范围而不同,在天线间距大于1m时的均方时延扩展服从lognormal分布,在天线间距小于1m时,RMS时延扩展在不同的天线间距下服从lognormal分布,并且其分布的均值与标准差与天线间距呈现线性关系.M easurements and characterizations are rarely conducted about indoor self-interference channel of CCFD（ Co-time Co-frequency full-duplex）. An extensive self-interference channel measurement is performed at 2. 6GHz under typical indoor environment w ith channel sounder based on vector netw ork analyzer. By analyzing the measurement data,the empirical channel characteristics such as path loss exponent,RM S（ root-mean-square） delay spread have been extracted. Results show that path loss exponent and RM S delay statistics are different according to antenna separation of transmitter-receiver. When the separation is larger than 1m,the path loss exponent is 1. 86,and the RM S delay statistics follow lognormal distribution. When the separation is less than 1m,the path loss exponent is 1. 52,and the RM S delay statistics at different antenna separation follow lognormal distribution w hose mean and variance are linear functions of antenna distance respectively.

关 键 词：2.6GHz 信道测量 室内环境 同时同频全双工 自干扰信道 

分 类 号：TN919.72[电子电信—通信与信息系统]